Geoege f



2 Sheets-Sheet 1.

(No Model.)

G. F. HUTOHINS.

PATTERN MECHANISM FOR LOOMS.

No. 898,828. Patented Feb. 19, 1889.

INVENTUR.

AT'T'EIRNEY.

WITNESSES:

N. PEIERS. Phelo'L'nlmgmphur. Wnshinglum D. c.

2 Sheets-Sheet 2 (No Model.)

G. P. HUTCHINS.

PATTERN MECHANISM FOR LOOMS.

Patented Feb. 19, 1889.

INvENTfiR VVITNEEEEE;

W flaw? ATTORNEY.

UNITED STATES PATENT EE-ic GEORGE F. HUTCHINS, OF VORCESTER, MASSAOHUSE""S, ASSIGNOR TO THE KNOVLES LOOM \VORKS, OF SAME PLACE.

PATTERN MECHANISM ,FOR LOOMS.

SPECIFICATION forming part of Letters Patent N0. 398,328, dated February 19, 1889.

Application filed November 10, 1888. Serial No. 290,419. (No model.)

To all whom it may concern: cylinder-shaft, by means of which the head Be it known that l, GEORGE F. IIUTCHINS, motion is turned by hand, the cylinders bea citizen of the United States, residing at ing geared to the upright driving-shaft, as W'orc'ester, in the county of \Vo'rcester and shown in Fig. 3 in the abovennentaoned Pat- State of l\lassachusetts, have invented certain ent No. 13 ,992. All these parts are connew and useful Improvements in Pattern structed and arranged as heretofore and as Mechanism for Looms; and I do hereby defully set forth and described in'said Patent clare that the followingis a full, clear, and ex- No. 134,992. act description thereof, which, in connection Referring to Fig. 2, at is a part of the lower 10 with thedrawings making a part of this spccicylinder, 2 a part of the head-frame, 17 the fication, will enable others skilled in the art cylinder-shaft, and 15 the lock-knife cam fast to which my invention belongs to make and on said shaft. use the same. Loose on the end of the cylinder-shaft 17,

My invention relates to looms, and more and adjoining the lock-knife cam l5,isa spur- I 5 particularly to the harness and drop-box mechgear, 18, which meshes with a gear, 19, of the anism of the well-known Knowles loom shown same size loose on the stud 20, fast in frame and described in Letters Patentof the United 2. Fastened to gear 19 is a smaller gear, 21, States No. 134,992. in line with'a fourth gear, 22, of the same The object of my invention is to secure a size as the gear 21, loose on shaft 17 and ad- 20 greater range of adjustment in timing the joining the first-mentioned gear 18. Gears parts of the harness and dropbox m cchanism 21 and 22 are smaller than gears 18 and 19, than has heretofore been practicable in said so that when the latter pair are meshed proploom, while retaining all the facilities for erly the points of'the teeth of theformerpair manipulating the harness and box motions clear each other.

* 25 by hand that havebeen obtainedin said loom; Gears 18 and 22 are retained on the shaft and my invention consists in certain novel by collar 2.), and are slotted to receive the features of construction, arrangement, and projecting end 24 of the key 25, (shown in de. combination of mechanisms, as will be heretail in Fig. 3,) adapted to slide freely in a slot inafter fully described. in the end of shaft 17, and provided with a 0 Referring to the. drawings, Figure 1 is a parhead, 26, by which it may be moved in its slot tial side elevation of said Knowles loom with out of engagement with one and into engageiny improvements applied thereto. Fig. 2 is ment with the other of gears 18 and Fasta section taken on line a: a", Fig. 1. Fig. 3 is ened to collar 23 and coiled part way around. a detail view of the sliding key. Fig. l is a it is a flat spring, 27, (see Fig. 1,) which acts section taken on line y y, Fig. 1; and 5 to force a pin, 28, free to move in a hole in is a representation, largely diagrammatic, of collar 23 into notches 10 in the top of key 25. some of the working parts of the mechanism. The notches 410 are so placed that the pin 28 I In the accompanying drawings, 1 is a part will hold the key 25 in the proper position for of the loom frame or arch. 2 is the headdriving one or the other of the gears 18 and 40 frame. 3 is the top and at the bottom cylin- 22 with the shaft 17. o der-gear, journaleil in the head-frame. 5 is a Mounted loosely upon a stud, 29, Fig. 1, fast vibrator-gear pivoted at 6 on the vibratorin frame 2, is a gear, 30, of the same size as lever 7, which is pivoted at 8 in the headgears 21 and 22, and so placed as to mesh. frame. 9 a vibrator-connector pivoted at properly with them. Fast on the face of gear 45 one end to the gear 5 and at the other end to 30 is a pin-wheel, 31, fitted to drive the star- 5 a harness-lever, 10. 11 is the pattern-cylinwheel 32, loose on the end of pattern-chain der. 12 is thelock-knife arm pivoted on shaft cylinder-shaft 11. 13, journaled in the loom-frame and operated Formed in the face of the star-wheel, on a through lever 14 by cam 15 on the lower cylcircle concentric with it, are sockets 3-3,placed 5o inder-shaft. 16 is a handle fast 011 the top at regular intervals between the points of the loo 11 with a;

star-wheel, and adapted to receive the end of plunger 3st, fitted to slide in chamber 35, which is part of the hub 36, fastened by set-screw 37 to the end of the pattern-eylinder shaft 11. (See Fig. 4-.)

Plunger 31L is reduced in diameter on its inner end, having coiled about it the spiral spriugSS confined between the shoulder at the end of the plunger and the end of the chamber 35, thus acting to force the plunger into the sockets 33 on the star-wheel 32. The reduced spindle of the plunger projects out through the end of the chamber, and receives the handle 39, by which the plunger is drawn out of the sockets 33 in the star-wheel 32, and by which the pattern -cylinder 11 may be turned by hand, while the star-wheel 32 is locked to the gearing-train by the pin-wheel 31L Vhen the plunger 34: is in a socket 33,

the star-wheel 32 drivesthe patterncylinder eti i erationo' the mechanism there shown. The cylinder-gears 3 and 4 rotate in the direction indicatedby the arrows. The vibrator-gear 5 is represented as just at the point of being started by the lower cylinder-gear, at, the revolution of which turns the vibratorgear through about a half-revolution, bringing the opposite end of slot iOin the vibrator-gear against the stop 41 on the vibrator-lever 7, an'dbringing the open part 42 of the gear 5 opposite the point of contact with gear at, so that the vibrator-gear 5 will not again be moved till the vibrator-lever 7 is lifted by the pattern-0y]inder 11 into engagement with the topcylinder-gear, 3, when the contrary halfrcvolution ot' the vibrator-gear 5 takes place, and remains in that second position till the pattern-cylimler drops the vibratordevcr 7 into the position shown in Fig. 5, and so on,

as fully set forth in said Patent No. 134,992.

It'is desirable to take as large a part of the revolution of the cylinder-gears as possiblefor the rotation of the vibrator-gear in order to make the harness motion easy on the warps.

to Fig.5, Twill explain theop justment of the harness and box motion cylindcr-gearsan advantage which is well understood by those skilled in the art.

It is frequently desirable in finding the pick, and in picking out imperfect work, to open the successive sheds in the inverse order to that used in weaving.

- It will be seen by reference to Fig. 5 that the cylinder-gears cannot be turned backward. Suppose the cylinder-gears to be started in a direction opposite to the proper one indicated by the arrows until the teeth 43 on the cylinder-gears engage the teeth 44 on the vibrator-gear5; thenthe motion would be locked, asv the vibrator-gear cannot turn against the stop 4.1; By pulling out the head 26, Figs. 1 and 2, until the projecting part 24 of key 25 engages the gear 22, said gear becomes the driver on shaft 17 leaving gear 18 loose, by which changethe pin-wheel 31 will be driven direct from shaft lZinstead of through intermediate gears, 19and 21, thus revel-sing the motion ot the pattern-cylinder: 11 while thecylinder-gears3 anda turn inthe same direction as before.

I claim as new, and desire to secure by Letters Patent,is-

1. In a loom of the class described, the combination, wit-h the cylinder-gears, vibratorgear, connector, vibrator-lever, and harnesslever, and gears 18 and 22, loose on the lower cylinder-shaft, sliding key 25, compound gears 19 and 211, loose on a stud supported in the loom-frame, of a pin-wheel gear, and pin-wheel driven by said gears, and adapted to drive a star-wheel connected-with the pattern-cylinder, and said star-wheel and pattern-cylinder, all constructed and arranged substantially as shown and' described. V

2. in a loom of the class described, the combination, with the pattern-chain cylinder, a star-wheel, 32, loose on said cylinder, hub 36, fast thereon, and a spring-actuated plunger supported in said hub and adapted to enter into and be withdrawn from sockets in said star-wheel, tor the purpose stated, of a pinwheel, 31, and gear 30, loose on a stud, compound intermediate ears, 19 and 21, loose on a stud,gcars 1S and loose on the cylindergear shaft, and said shaft, sliding key 25, cylinder-gears, connector, vibrator-gear, vibrator-lever, and harness-lever, substai-it ially as j shown and described.

GEORGE F. IIUlCHINS. \Yitnesses:

JOHN C. DEWEY, CLARENCE M. ScHonIELD.

Havin thus described 111 invention what IIO 

